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https://gitee.com/Lyon1998/pikapython.git
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132 lines
3.3 KiB
C
132 lines
3.3 KiB
C
/* this demo shows the usage of derive and override */
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#include "BaseObj.h"
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#include <stdio.h>
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void sendMethod(PikaObj *self, Args *args)
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{
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char *data = args_getStr(args, "data");
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/* send to com1 */
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printf("[com1]: %s\r\n", data);
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}
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void setSpeedMethod(PikaObj *self, Args *args)
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{
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int32_t speed = args_getInt(args, "speed");
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obj_setInt(self, "speed", speed);
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}
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void printSpeedMethod(PikaObj *self, Args *args)
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{
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int32_t speed = obj_getInt(self, "speed");
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printf("%d\r\n", speed);
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}
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PikaObj *New_USART(Args *args)
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{
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/* Derive from the tiny object class.
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Tiny object can not import sub object.
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Tiny object is the smallest object. */
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PikaObj *self = New_TinyObj(args);
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/* setArgs */
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obj_setInt(self, "speed", 9600);
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/* bind the method */
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class_defineMethod(self, "send(data:str)", sendMethod);
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class_defineMethod(self, "setSpeed(speed:int)", setSpeedMethod);
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class_defineMethod(self, "printSpeed()", printSpeedMethod);
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/* return the object */
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return self;
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}
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void sendFun2(PikaObj *self, Args *args)
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{
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char *data = args_getStr(args, "data");
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/* send to com1 */
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printf("[com2]: %s\r\n", data);
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}
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PikaObj *New_USART2(Args *args)
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{
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/* Derive from the usart class.*/
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PikaObj *self = New_USART(args);
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/* override the method */
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class_defineMethod(self, "send(data:str)", sendFun2);
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/* return the object */
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return self;
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}
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PikaObj *New_MYROOT(Args *args)
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{
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/* Derive from the base object class .
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BaseObj is the smallest object that can
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import sub object. */
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PikaObj *self = New_BaseObj(args);
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/* import LED class */
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obj_import(self, "USART", New_USART);
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obj_import(self, "USART2", New_USART2);
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/* new object bellow root object */
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obj_newObj(self, "usart1", "USART");
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obj_newObj(self, "usart2", "USART2");
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/* return the object */
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return self;
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}
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int32_t main()
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{
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/* new root object */
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PikaObj *root = newRootObj("root", New_MYROOT);
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/* user input buff */
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char inputBuff[256] = {0};
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/* usart and usart2 can also be use the method in USART */
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printf("the speed of usart1 before set:");
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obj_run(root, "usart1.printSpeed()");
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printf("the speed of usart2 before set:");
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obj_run(root, "usart2.printSpeed()");
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obj_run(root, "usart1.setSpeed(115200)");
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obj_run(root, "usart2.setSpeed(284000)");
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printf("the speed of usart1 after set:");
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obj_run(root, "usart1.printSpeed()");
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printf("the speed of usart2 after set:");
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obj_run(root, "usart2.printSpeed()");
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/* the send method is override in usart2 */
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obj_run(root, "usart1.send('hello world')");
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obj_run(root, "usart2.send('hello world')");
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printf("memory used max = %0.2f kB\r\n", pikaMemMax() / 1024.0);
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printf("memory used now = %0.2f kB\r\n", pikaMemNow() / 1024.0);
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while (1)
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{
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/* get user input */
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fgets(inputBuff, sizeof(inputBuff), stdin);
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/* run PikaScript and get res */
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Args *resArgs = obj_runDirect(root, inputBuff);
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/* get system output of PikaScript*/
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char *sysOut = args_getSysOut(resArgs);;
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if (NULL != sysOut)
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{
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/* print32_t out the system output */
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printf("%s\r\n", sysOut);
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}
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/* deinit the res */
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args_deinit(resArgs);
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}
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}
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